Loose nailer.



H. H. GUMMINGS. LOOSE NLILEB. urmoulol mim: nma'a. uns. 4 4 i 3 996,065.Pamnaune 27, 1911.

Il BHEETl--BHEET 1.

A ienzyH Wfl-HM 6L? 'rn nu nvxnn.. wumlmu. me.

n. 11. oUMMmes.

LOOSE HAILEB.

APPLIOATIOI PILBD 1530., 1906.

996,065. Patented June 27, 1911@ wneaoea: Invenor MWC( .HCTJIH Clmmi MJf4 W. y Mwd-'v H. H. GUMMINGS.

` LOOSE NAILER.

Arrmonlon ruin 11110.23, m05.

' 996,065. m8111011 June 2v, 1911.

8 SHEETHHEBT 8.

Invenor:

rut muuu: Irun cm, wAsHlNoroN. n. 1:4

H.' H. CUMMINGS.

LOOSE NAILEB.

APPLIOATIOH FILED DEU. 23, 1905.

996,065. l Patented June 27, 1911.

0 SHEETS-SHEET 4.

wgneue: nvenior: i lnzyH Cumming@ HM H www@ 5w?, M?

flll rmllkls ruins-ra., vu suman". D. c.

H. H. GUMMINGS.

LOOSE NAILEB.

APPLIOATIOH FILED DBO. 2s, 1905.

Patented June 27, 1911.

6 SHEETS-SHEET 5.

zati/nests e -s 'mz Nolens rlrlks co., wnsmnaran. 9, c,

H. H. CUMMINGS.

LoosE NAILER.

APPLIOATIOH FILED DBO. 23, 1906. l

Patented June 27, 1911.

B SHEETS-SHEET 6.

1| 1 J2e 220 160 161 O o Zz/'Zne'mse 160 Inverz enzzyfummi s 63 nun/ 1n:Nonni: Plrlkl co., wulnlwu. n. n

UNITED STATES PATENT OFFICE.

HENRY H. CUMMINGS, OF NEWTON, MASSACHUSETTS, ASSIGNOR, BY MESNE ASSIGN-MENTS, TO UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY,

A CORPORATION OF NEW JERSEY.

LOOSE NAILER.

Specification of Letters Patent.

Application tiled December 23, 1965.

Patented June 27, 1911.

Serial No. 293,047.

To all whom it may concern:

Be it known that I, HENRY H. CUM- MINGS, a citizen of the United States,residing at Newton, in the county of Middlesex, Commonwealth ofMassachusetts, have invented an Improvement in Loose Nailers, of whichthe following description, in connection with the accompanying drawings,is a specification, like letters on the drawings representing likeparts.

My invention relates to machines for nailing boo-ts and shoes andparticularly to that type of machine known to the trade as loose nailersIn these machines, loose nails placed in a hop-per are automaticallydelivered to a roadway, down which they are compelled to travel to beseparately placed in the path of a reciprocating driver and driventhereby into the work resting upon a suitable support.

The features of my invention will be best understood and appreciated byreference to the following description when taken in connection with theaccompanying drawings, of a machine illustrating one embodiment of myinvention, while its scope will be more particularly pointed out in theappended claims.

Referring to the drawings,-Fignre 1 is an elevation of the left side ofthe upper part of a nailing machine; Fig. 2, a front elevation thereof;Fig. 3, an elevation of the right side of the nailing mechanism; Fig. 4,a transverse vertical sectional detail on line 4 4, Fig. 1, to show theclutch and brake mechanism; Fig. 5, a detail showing in side elevationthe lower end of the awl driver and the awl carrier mounted therein withits vertical grooves fo-r variably positioning the awl therein; Fig. 52aplan view of the awl bar and carrier from below Fig. 6, a verticalsectional detail taken on lineG-, Fig. 2; Fig. 7, a partial sectionalelevation thereof; Figs. 8 and 9, details of the carrier and racewayconnections; Fig. 10, an elevation of the complete machine from theright side; Fig. 11, a vertical section on line 1111, Fig. 2; Fig. 12,an elevation of the base of the standard to show the horn and itssupportingr mechanism, lookingr from the right; and, Fig. 13, a detailt-o show the yoke and collar to engage the hanger arm of the horn shaft.i

In the embodiment of the invention herein selected for illustration, mynailing machine,-see Figs. 1, 2 and 10,-is provided with the usualcolumn, A, supporting the frame or head, A', having bearings, 1, for ahorizontal drive shaft, C, and for a rockinghead, B, adapted to beoscillated by rotation of the drive shaft, C. This oscillatory head, B,has a vertical passage, 2, for a driver bar, 3, carrying the driver, 3a,and is provided with a longitudinal groove, 4 (Figs. 3 and 10), toreceive the awl bar, 5. A strat, 6 (Figs. 1 to 3), is ball jointed tothe upper end of the driver bar and to a lever, 7, pivoted on a bracket,8, at the top of the frame, A. A coil spring, 9, encircling the bracketpivot, is interposed loetween the arm of the lever and the frame todrive the bar down and is provided with adjusting means, 10, to regulateits tension, as in Patents Nos. 365,227 and 490,624, and being wellunderstood by those skilled in the art needs no further description orillus` tration. To lift the driver bar against the action of the spring,I provide a projecting lug, 12, on a cam, 13, mounted upon the front endof the drive shaft, which lifts the driver bar at each rotation of theshaft, permitting it to drop from the projection and, under the actionof its spring, drive the fasv tening.

The rear end of the drive shaft,-see Figs. l, 3, 4, and 10,-has asuitable, fast pulley, 14, mounted within a recess of a loose pulley,15, constituting Yone form of friction clutch. A loose collar, 16, ismounted on the drive shaft in front of the loose pulley, to bear againstthe pulley hub, 17, and is recessed to receive the sides of a wedge, 18,slotted to embrace said collar and shaft. The lower end of the wedge oractuator is adjustably secured to the uV per end of a treadle rod, 19.

` and is provide with a longitudinal guide slot, 20 (Fig. 4) for a guidepin, 21, secured to the frame A. The lower end of this rod (Fig. 10), isprovided with a usual colteeth of the wheel acting against the heads ofany nails which are not properly seated, or those sliding down the slotendwise. The raceway is guided and supported by a carrier, 111x (seeFigs. 1, S and 9), having split sleeve bearin s,112,at its innereud,clamped to a stub shaft, 113, Fig. 1 which is mounted in bearingsupon the oscillatory head, B. The outer end of the carrier is providedwith dove-tailed grooves, 114 (Fig. 9), engaging similarly shaped blocksor ribs 115 on the back of the rear plate, 109, of the raceway, and anear, 11G, (Fig. 2) is formed upon the roadway covering plate, 117,drilled to receive a bolt, 118, by which it is secured to a similar ear,119, formed upon the carrier. The carrier being thus firmly secured tothe oscillatory head, the roadway or raceway is forced to reciprocate inthe hopper, said motion also assisting the slide of the nails down theraceway, and preventing lateral displacement between the nail receivingblock and the raceway fitted thereto by the described tongue and grooveconnection.

Referring now to Figs. 1() and 12: the horn actuating rod, 39, is joinedto the horn depressing lever or treadle 120, which is piv otallyconnected at 121, with the lower end of the horn shaft, 122. Said hornshaft is provided within the base of the column, with a usual adjustablecollar, 123, and co-il spring, 124, the normal tendency of which is tolift the horn shaft, 125, and maintain it in its upper or elevatedposition. This col umn is provided with a. tapering standard, 126,drilled to guide the upper end of said horn shaft, which is threaded atits upper end, 127, to receive thereon a split hub," 128, formed uponthe upper end of a hanger arm, 129. This hanger arm is firmly secured onthe ho-rn shaft by a pair of clamping bolts, 130, and a through andthrough bolt, 131, and the lower portion of said hanger is curved at132, so as to offset it from the horn shaft. The base of the standard isprovided with a collar or sleeve, 133 (Fig. 13), clamped thereon by thebolts, 134, and the outer walls of the collar are formed to present ayoke, 135, to receive the lower end of the hanger and lock it positivelyin position. The lower end of the hanger arm is shaped to form a bearingfor a short shaft, 136, having a headed nut, 137, on its lower end, thesaid shaft being tapped into or projecting from an enlarged cam head,138, on the upper end of said shaft, a coil spring, 139, beinginterposed between the head and hanger bearing to normally force theshaft to its lowest position. This cam head is provided with a spiralrecess, 140, or cam face bearing against a collar, 141, having a similarspiral, 142, or inclined upper edge and constituting a vertical cam.Said vertical cam, 141, has

a projecting handle or actuator, 143, with a slidable finger, 144, onits under side, depending from a spring controlled ratchet pin, 145,normally engaging a ratchet, 146, formed at the base of the hanger. Bymoving the pin outward and swinging the actuator to the right or left,the enlarged head may be lowered or raised to depress or elevate thehorn, as desired. An ear or lug, 147, is formed at the top of saidenlarged head, a link, 148, being pivotally connected therewith, which,at its upper end is pivotally connected to the lower end of theoutwardly curved horn, 149, by suitable means, as the pin, 150. By thisarrangement, the horn may be swung laterally to the right or left, andtoward and from the machine to enable worlr supported thereon to beplaced in any position desired. The horn is pulled down positively andto a uniform distance below the under side of the stock after drivingeach fastening, and while the awl is feeding the stock, by means of apawl, pivoted on the pawl carrier, 153, which is slidable in guides,154, and connected to the horn actuating rod, 39. This carrier, 153, islifted once at each revolution of the drive shaft by the cam, 23,through thc lever, 35, said lifting occurring immediately after thedriver has descended and the awl is in the stock, while being moved bythe oscillatory head, B, to feed the stock. The pawl, 152, as it iselevated, engages the rack, 155, also mounted in the guides, 154, andthe rack being connected with the lever, 120, by a rod, 156, said leveris moved thereby or oscillated to depress its outer end and the hornshaft and horn connected therewith. As the horn actuating rod isdepressed by the cam, 23, the camblock, 157, moves the pawl outwardly todisengage it from the rack, the coil spring, 124, immediately acting toelevate the horn against the stock whatever may be its thickness. Bythis arrangement the horn is always depressed a uniform or fixeddistance from the under side of the stock, notwithstanding variations inits thickness. For depressing the horn at will, an emergency foottreadle, 161, is provided, which, however, bein an old and usual form oftreadle, needs no urther description.

In the operation of the machine, the last ed shoe is mounted upon thehorn and the heel of the upper is brought in position against the rollerof the edge-gage and adjacent that portion of the heel seat wherenailing is to be begun. The machine is started by giving the treadle,160, a downward impulse just sufficient to elevate its treadle rod andwedge to actuate the clutch and release the brake, causing the rotationof the drive shaft and its cams. The rotation of these cams controls andoperates the horn, the driver and separator, and moves the rock-shaftsto oscillate the driver and awl carrying head, B, and the racewayconnected thereto, while feeding the stock along at the proper time onthe release of the work by the timed depression of the horn immediatelyafter each nail has been driven. The feeding of the stock is effected bythe awl, which has been driven into the stock by the movement of thesegmental arm as it is oscillated by its rock shaft. While the nailingand awl driving operations are going on, the gear wheels have caused therotation of the shelved drum and clearers to effect a proper supply andfeeding of the loose nails to the shelf and raceway. Immediately afterthe wor; has been fed and the awl removed from the work so that the awlhole is directly below the nose, the cam has rotated to present theportion of less diameter to the wedge ro-ller, which is forced downward,releasing the clutch, applying the brake, and stopping the machine withits horn depressed and the driver and awl bars elevated.

I claim- 1. Ina nailing machine, the combination of a nail driver andawl, a drive shaft, a raceway for delivering nails, means for supplyingnails to the raceway, a nail separator for presenting nails singly fromthe raceway to the driver, a separator shaft, gearing connected to thedrive shaft and separator shaft to actuate the latter at reduced speed,and means actuated by the single separator shaft to operate the nailsupplying means, and devices operated from the separator shaft to causethe separator to make a` plural number of separating excursions acrossthe raceway to each single revolution of the separator shaft;

2. In a nailing machine, a drive shaft and means for rotating it, adriver, an awl bar having a grooved slot in the end thereof, a removableawl carrier connected therewith, provided with means for clamping an awltherein, and means for reciprocating the driver and awl by rotation ofthe driveshaft.

3. In a nailing machine, a driver, an awl bar having a groove in itslower end, an awl carrier therein, means for holding an awl in saidcarrier in one of a series of positions laterally stepped from saiddriver, means for securing the carrier to the grooved awl bar, and meansfor reciprocating the driver and the awl bar.

4. In a nailing machine, the combination of a nail driver and awl, adrive shaft, means for supplying nails to be driven, a nail separatorlever carrying a nail separator for presenting nails singly from thesupplying means to the driver, a separator shaft having a cam providedwith two diametrically disposed risers for acting on the separator leverto cause the nail separator to make two nail separating excursions toeach single rotation of the separator shaft, and connections between thesame separator shaft and nail supplying means to operate the latter.

5. In a nailing machine, a drive shaft and means for operating it, adriver, an awl bar, an awl carrier removably connected to said awl barand having a series of positioning grooves for an awl disposed laterallyat varying distances from the driver, and means for reciprocating thedriver and awl.

6. In a nailing machine of the character described, a drive shaft, meansfor operating it, an awl bar having an awl carrier connected thereto andprovided with a series of positioning means for an awl disposedlaterally at varying distances from the driver, a nail receiving blockhaving a series of guiding means for the awl corresponding to the awlpositioning means and means for reciprocating the driver and awl bar.

7. In a nailing machine of the character described, the combination of adrive shaft, a driver, an awl bar 5 having a slot extending transverselythereof, a slotted carrier clamped therein and having a series ofgrooves 64 for positioning an awl with respect to the driver, theoscillating head B carrying a block having a series of holescorresponding to the awl positioning grooves, and means forreciprocating the awl bar and driver.

8. In a nailing machine of the character described the combination withthe drive shaft and means for operating it, a driver, an awl bar, an awlcarrier having position determining grooves for an awl therein, anoscillating head B, and means for oscillating the head and means foradjusting the head oscillating means to correspond to the positiondetermining grooves in the awl carrier.

9. In a nailing machine, the combination of a nail driver and awl, adrive shaft, a raceway for delivering nails, rotary means for deliveringnails to said raceway, a nail separator for presenting nails singly fromthe raceway to the driver, a separator shaft, gearing connection betweenthe separator shaft and drive shaft to operate the separator shaft atreduced speed, operating connections between the slowly rotatingseparator shaft and rotary nail delivery means to slowly rotate thelatter, and means actuated by the slowly rotating separator shaft tocause two nail separating excursions of the separator across the racewayto each single revolution of the separator shaft.

10. In a nailing machine, the combination of a drive shaft, a separatorshaft driven therefrom at reduced speed, a rotary hopper sustained bythe separator shaft, a nail separator, and connections between the nailIn testimony whereof, I have sgned my name to this specicaton, in thepresence of two subscribing witnesses.

HENRY H. CUMMINGS. Witnesses:

IRVING C. DEGATUR, SIDNEY F. SMITH.

separator and separator shaft, and between the hopper and Separatorshaft, for causing the nail separator to make a nail Separatingexcursion and supply a nail to the driver for each driving Stroke andfor causing the rotary hopper to be slowly rotated to supply nails tothe separator.

Copies of this patent may be obtained for five cents eaeh, by addressingthe Commissioner of Patents, Washington, D. C.

Cs J. DRPP.

BLEUTRU SNAP SWITCH.

mummia); rin-BD 00123. 1910,

Patented June 27,1911.

@on-raul ayjf

